[issue26494] Double deallocation on iterator exhausting

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Updated patch fixes also set, dict and os.scandir() iterator.

May be sqlite3 cursor needs a fix, but it is too complicated.

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Added file: http://bugs.python.org/file42081/free_after_iterating_2.patch

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<http://bugs.python.org/issue26494>
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